Home / 328,966.20-493,109.10-178,889.40

Finding the Fourth Proportional to 328,966.20, 493,109.10 and 178,889.40

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Solution

The fourth proportional to 328,966.20, 493,109.10 and 178,889.40 is: 268,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,966.20 : 493,109.10 = 178,889.40 : x
  2. Step 2: Convert to fraction form
    328,966.20/493,109.10 = 178,889.40/x
  3. Step 3: Cross multiply
    328,966.20x = 493,109.10 × 178,889.40
  4. Step 4: Simplify right side
    328,966.20x = 88,211,991,033.54
  5. Step 5: Solve for x
    x = 88,211,991,033.54/328,966.20
  6. Step 6: Final answer
    x = 268,149.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.